In developing an interval estimate of the population mean, if the population standard deviation is unknown _____

a. it is impossible to develop an interval estimate
b. a sample proportion can be used
c. the sample standard deviation and t distribution can be used
d. None of the answers is correct.


c

Business

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One of the most contemporary approaches to studying leadership is the focus on ______.

A. traits B. transformation C. skills D. followership

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I am doing a task I do not really understand and wish my leader would clear up my confusion by telling me the first few steps. According to path-goal theory, which leadership style would help me the most?

A. directive behaviors B. achievement behaviors C. supportive behaviors D. participative behaviors

Business

A(n) ______ is useful when your reader needs an impression of an object’s general appearance.

A. photograph B. flowchart C. diagram D. map

Business

Big Beef, Inc raises calves to sell. Big Beef breeds its cows in April, and the cows calve in February of the following year. In January Andrea contracts with Big Beef to buy fifty calves. Identification takes place in ?

A)? January, when the contract is signed B) ?April, when the calves are conceived. C)? February, when the calves are born. D)? a reasonable period of time.

Business